Si Young is the first son of ark Hee Chan and knows the truth about why his father insisted that he must take over the family business. He is a cold-hearted businessman who often uses dirty business tactics. As he takes over the day-to-day operations of the guild, he grows into a strong leader. But Jae Young, his younger brother, becomes his own man and does not follow his older brothers business style. (Source: AsianWiki)